48 not charging

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Matysek22
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Zip Code: 75160

48 not charging

Postby Matysek22 » Fri Apr 08, 2016 8:26 pm

So finally about to get a battery for (trouble) on a 6 volt mag cut out relay and no charge (no surprise) so went through everything polarized and re polarized took genny off lots of rust cleaned everything ohmed out field winding no open current not going to ground 3 brush got a fresh battery no power coming out of genny post a or f am I missing something she starting to earn her name

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John *.?-!.* cub owner
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Re: 48 not charging

Postby John *.?-!.* cub owner » Fri Apr 08, 2016 9:03 pm

Try this, it is for H and M, but electrical wiring is also the same on cub. Picture compliments of Farmall Bob

Image
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John *.?-!.* cub owner
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Re: 48 not charging

Postby John *.?-!.* cub owner » Fri Apr 08, 2016 9:08 pm

and make sure your wiring matches this assuming you have a distributor.

Image
also from Farmall Bob
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karlibob
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Re: 48 not charging

Postby karlibob » Sun Apr 10, 2016 7:51 pm

I am having a similar issue. I have a 49 cub, my voltage regulator gas 3 poles ("L", "Bat", and "F" on one side and "G" on the other. The generator is a 2 brush How do I wire that following the diagram shown. I was told to connect the "F" on the regulator to the "F" on the generator, the "G" on the regulator to the "A" on the Generator. Run the hot lead from the amp gauge to the "Bat" terminal on the regulator. Run a lead from the field resistor on the 4 way switch to the "L" on the regulator. Will this work?

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John *.?-!.* cub owner
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Re: 48 not charging

Postby John *.?-!.* cub owner » Sun Apr 10, 2016 8:26 pm

Karlibob, this would be the diagram you need. also from Farmall Bobs site

Image
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karlibob
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Re: 48 not charging

Postby karlibob » Sun Apr 10, 2016 9:36 pm

Thanks John, I will try this and get back. Using this diagram, what terminals do I touch to polarize it?

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John *.?-!.* cub owner
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Re: 48 not charging

Postby John *.?-!.* cub owner » Sun Apr 10, 2016 9:49 pm

karlibob wrote:Thanks John, I will try this and get back. Using this diagram, what terminals do I touch to polarize it?
Gen and bat.
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Rjpoog1989
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Re: 48 not charging

Postby Rjpoog1989 » Sun Apr 02, 2017 9:50 am

John *.?-!.* cub owner wrote:and make sure your wiring matches this assuming you have a distributor.

Image
also from Farmall Bob


My cub is not charging, looks like it should be wired like this but is not. What gauge wire is the one going from the switch resistor to F on the generator?

Edit: I just looked at the picture again and answered my own question...
1948 McCormick Deering Farmall Cub:
- International L-54 blade
- Woods 59 mower
1994 Toro Wheel Horse 312-8: 42" rear discharge deck
Husqvarna 562XP chainsaw: 24" bar w/ skip tooth
Craftsman 18" chainsaw

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John *.?-!.* cub owner
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Re: 48 not charging

Postby John *.?-!.* cub owner » Sun Apr 02, 2017 1:22 pm

Rjpoog1989 wrote:.......
My cub is not charging, looks like it should be wired like this but is not. What gauge wire is the one going from the switch resistor to F on the generator?

Edit: I just looked at the picture again and answered my own question...
If it is still not charging after getting the wiring straightened out you may need to polarize the generator. Here is a trouble shooting chart for generator with cutout from Farmall Bob's site

Image
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Rjpoog1989
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Re: 48 not charging

Postby Rjpoog1989 » Sun Apr 02, 2017 6:10 pm

I think it works now, I rewired and polarized. It had the F terminal on the cutout going to F on the generator. There was nothing connected to the resistor on the switch. The other thing that's wrong, but I didn't change it, is the ignition switch is wired off the amp meter vs being where the fuse on the light switch is. Amp meter shows charging with switch on high. Volt meter on battery shows higher voltage with tractor running switch on high vs tractor off. Helps to have things wired correctly...
1948 McCormick Deering Farmall Cub:
- International L-54 blade
- Woods 59 mower
1994 Toro Wheel Horse 312-8: 42" rear discharge deck
Husqvarna 562XP chainsaw: 24" bar w/ skip tooth
Craftsman 18" chainsaw

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John *.?-!.* cub owner
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Posts: 22655
Joined: Sun Feb 02, 2003 2:09 pm
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Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
Location: Mo, Potosi

Re: 48 not charging

Postby John *.?-!.* cub owner » Mon Apr 03, 2017 12:23 pm

With the F lead wired to the cutout, assuming it is a cut out and not a regulator, it will got go to high charge, only low charge which is about 2 to 3 amps. There is a resister in the cutout to ground the field, but it does not provide a full ground. The light switch had a flat wire wound mica resister that on L the switch grounded field through it, and on H or with lights on it provided a solid ground to give full charge, about 11 amps. You might want to take the cover off the cutout and check if there is one relay in it (cutout) or 2 or 3 realys, which would be a regulator. The original style regulators for cubs had 4 terminals, with the 4th one being an L (Load) termianl, but not all regulators have the L terminal.
If you are not part of the solution,
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Rjpoog1989
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Posts: 103
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Zip Code: 16650
Tractors Owned: 48 Cub

94 Wheelhorse 312-8

Re: 48 not charging

Postby Rjpoog1989 » Mon Apr 03, 2017 5:52 pm

The, what I'm assuming is a cutout, has 3 terminals. My light switch does have the resistor you speak of. Right now it seems to be working on both high and low settings. Before, the amp meter was showing 0 with the tractor running. I tried polarization before rewiring and that made no difference.
1948 McCormick Deering Farmall Cub:
- International L-54 blade
- Woods 59 mower
1994 Toro Wheel Horse 312-8: 42" rear discharge deck
Husqvarna 562XP chainsaw: 24" bar w/ skip tooth
Craftsman 18" chainsaw

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Glen
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Location: Wa.

Re: 48 not charging

Postby Glen » Mon Apr 03, 2017 6:28 pm

Hi,
The cutout, or Relay, IH called it, is on top of the generator.
Here are pages from a Cub owner's manual to help identify what your Cub has. I guess it is a 1948 Cub. This shows what it originally had. The 2nd page shows the wiring behind the dash. :)

http://farmallcub.com/rudi_cub/www.clea ... e%2033.jpg

http://farmallcub.com/rudi_cub/www.clea ... e%2034.jpg


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